/*
 * Copyright 2002-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using Microsoft.Extensions.Logging;
using Spring.Expressions;

namespace Spring.Aspects.Exceptions;

/// <summary>
/// Translates from one exception to another based.  My wrap or replace exception depending on the expression.
/// </summary>
/// <author>Mark Pollack</author>
public class TranslationExceptionHandler : AbstractExceptionHandler
{
    /// <summary>
    /// Initializes a new instance of the <see cref="TranslationExceptionHandler"/> class.
    /// </summary>
    public TranslationExceptionHandler()
    {
    }

    /// <summary>
    /// Initializes a new instance of the <see cref="TranslationExceptionHandler"/> class.
    /// </summary>
    /// <param name="exceptionNames">The exception names.</param>
    public TranslationExceptionHandler(string[] exceptionNames) : base(exceptionNames)
    {
    }

    /// <summary>
    /// Handles the exception.
    /// </summary>
    /// <returns>The return value from handling the exception, if not rethrown or a new exception is thrown.</returns>
    public override object HandleException(IDictionary<string, object> callContextDictionary)
    {
        object o = null;
        try
        {
            IExpression expression = Expression.Parse(ActionExpressionText);
            o = expression.GetValue(null, callContextDictionary);
        }
        catch (Exception e)
        {
            string message = "Was not able to evaluate action expression [" + ActionExpressionText + "]";
            log.LogWarning(e, message);
        }

        Exception translatedException = o as Exception;
        if (translatedException != null)
        {
            ThrowTranslatedException(translatedException);
        }

        return null;
    }

    private void ThrowTranslatedException(Exception exception)
    {
        throw exception;
    }
}
